Circuit/System Description

WARNING: This page is about a different variant/trim than selected.

The torque converter clutch (TCC) pressure control solenoid valve is part of the control solenoid valve assembly which has no serviceable components. The normally low TCC pressure control solenoid valve regulates oil pressure to the TCC regulator valve and TCC control valve. Increasing TCC pressure control solenoid valve oil pressure increases oil pressure to the torque converter to apply the clutch. The transmission control module (TCM) varies the current to the TCC pressure control solenoid valve by controlling the amount of time the low side driver is ON and OFF. Increasing current to the TCC pressure control solenoid valve increases oil pressure by closing OFF the solenoid valve exhaust port. Decreasing current to the TCC pressure control solenoid valve decreases oil pressure by opening up the solenoid valve exhaust port. TCC pressure control solenoid valve power is supplied by the TCM through a high side driver. The high side driver protects the circuit and components from excessive current flow. If excessive current flow is detected, the high side driver will turn OFF. When the fault is corrected, the high side driver will reset.